mirror of
https://github.com/54shady/kernel_drivers_examples.git
synced 2026-01-13 16:02:37 +00:00
44 lines
1.2 KiB
Makefile
44 lines
1.2 KiB
Makefile
# Makefile
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# Comment/uncomment the following line to disable/enable debugging
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# DEBUG = y
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# Usage
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# make CROSS_COMPILE=<cross_compiler_prefix> KERNEL_DIR=<your_kernel_dir> KERNEL_BUID_OUTPUT=<kernel_buid_output>
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#
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PWD := $(shell pwd)
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BUILD_ENV = $(PWD)/../../buildenv
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cross_compiler_prefix = $(shell awk -F "CROSS_COMPILE=" '/CROSS_COMPILE=/{print $$2}' $(BUILD_ENV))
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kernel_output = $(shell awk -F "KERNEL_BUILD_OUTPUT=" '/KERNEL_BUILD_OUTPUT=/{print $$2}' $(BUILD_ENV))
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kernel_dir = $(shell awk -F "KERNEL_DIR=" '/KERNEL_DIR=/{print $$2}' $(BUILD_ENV))
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# Add your debugging flag (or not) to CFLAGS
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ifeq ($(DEBUG),y)
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DEBFLAGS = -O -g -DSCULL_DEBUG # "-O" is needed to expand inlines
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else
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DEBFLAGS = -O2
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endif
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obj-m := demo1_kernel.o
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obj-m += demo2_kernel.o
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obj-m += demo3_kernel.o
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KERNEL_DIR ?= /lib/modules/$(shell uname -r)/build
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KERNEL_BUID_OUTPUT ?=$(KERNEL_DIR)
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CC = $(CROSS_COMPILE)gcc
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LD = $(CROSS_COMPILE)ld
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PWD := $(shell pwd)
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modules:
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$(MAKE) CROSS_COMPILE=$(cross_compiler_prefix) -C $(kernel_dir) O=$(kernel_output) M=$(PWD) modules
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clean:
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rm -rf *.o *~ core .depend .*.cmd *.ko *.mod.c .tmp_versions modules.order Module.symvers
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depend .depend dep:
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$(CC) $(CFLAGS) -M *.c > .depend
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ifeq (.depend,$(wildcard .depend))
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include .depend
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endif
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